Study of homing means for laser-wake-homing torpedoes
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摘要: 为了研究鱼雷的激光尾流制导方法,分析了舰船航行时所产生尾流的几何特征和光学性质,讨论了舰船尾流中不易在短时间内消失的微气泡对激光的散射特性,提出了利用激光在尾流区域内、外传输时,其前向或后向散射激光在时域、频域和空域中光学参数的变化来快速、准确地判别鱼雷是否进入、穿出尾流,从而导引鱼雷沿目标舰船的航迹靠近目标的新型鱼雷制导方法。讨论了实现鱼雷激光尾流制导的几种不同途径,得出了上视激光尾流制导是一种既不会破坏鱼雷雷体的流线性结构,又可以通过激光扫描来确定尾流边界的先进的鱼雷制导方法的结论。Abstract: The geometric characteristics and optical properties of ship wake are studied.It is analyzed that the scattering idiosyncrasy of laser by small bubbles in wake which are difficult to diffuse and dissolve in short time.Based on the changes of the forward or backward laser scattering characteristics in time domain,frequency domain and space domain when torpedo comes in and goes out of the ship wake,a new torpedo-wake-homing scheme to shadow the target is proposed.Some laser-wake-homing ways are discussed and compared.It is confirmed that ascending laser-wake-homing means is the advanced non-acoustic wake homing method which not only does not injure the exterior structure of torpedo,but also can fix on the borderline of ship wake by laser scan.
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[1] 李溢池,王树宗.现代鱼雷——水下导弹[M].北京:海洋出版社,1995.107～109. [2] 冀邦杰,周德善,张建生.基于舰船尾流光效应的制导鱼雷[J].鱼雷技术,2000,31(3):40～43. [3] 周德善.舰船气泡尾流几个特征参数的研究[R].西安:西安705研究所,2001.140～152. [4] CARRICA P M,BONETTO F J,DREW D A.The interaction of background ocean air bubbles with a surface ship[J].International Journal for Numerical Methods in Fluids,1998,28(5):571～600.
[5] 蔡平,朱代柱,惠俊英.水面船尾流的声散射实验研究[J].声学学报,2000,25(1):10～15. [6] ZHANG X D,LEWIS M,JOHNSON B.Influence of bubbles on scattering of light in the ocean[J].Appl Opt,1998,37(27):6525～6536.
[7] 张建生.尾流的光学特性研究与测量[D].西安:中国科学院西安光学精密机械研究所,2001.99～101. [8] 张建生,刘健康,冀邦杰.激光通过实验室模拟尾流的衰减特性[J].西安工业学院学报,2001,21(6):283～287. [9] 刘继芳,刘海洋,冀邦杰.气泡光散射谱强度分布研究[J].鱼雷技术,2003,42(2):17～19.
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